List of US Post Office Stores in Wadmalaw Island, SC Outlet Note Regular Brands US Post Office South Carolina Wadmalaw Island Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Wadmalaw Island 1917 Liberia Rd (843) 559-0506 People Also Viewed